Shackle



FIG. 1 is a top perspective view of a shackle according to my newdesign;

FIG. 2 is a bottom perspective view of the shackle of FIG. 1;

FIG. 3 is a top plan view of the shackle of FIG. 1;

FIG. 4 is a bottom plan view of the shackle of FIG. 1;

FIG. 5 is a front elevational view of the shackle of FIG. 1;

FIG. 6 is a rear elevational view of the shackle of FIG. 1;

FIG. 7 is a left side elevational view of the shackle of FIG. 1; and,

FIG. 8 is right side elevational view of the shackle of FIG. 1.

The broken lines, which define the bounds of the claimed design, form nopart thereof. The broken lines environmental are for illustrativepurpose only and form no part of the claimed design.

I claim the ornamental design for a shackle, as shown and described.